So, how does he do it? During the run, I noted ample use of sound cues, and you can even hear the speedrunner counting at certain intervals in Japanese, to make sure he got the timing of the jumps just right. When he can, きらめきでどーだい tries to avoid danger altogether by either flying or swimming above the danger. The run is not perfect: きらめきでどーだい actually dies at a couple of points, which means that the time could be improved more still. Wild.